Home / 129,853,851.84-179,198,378.16-71,120,210.76

Finding the Fourth Proportional to 129,853,851.84, 179,198,378.16 and 71,120,210.76

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Solution

The fourth proportional to 129,853,851.84, 179,198,378.16 and 71,120,210.76 is: 98,145,925.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,853,851.84 : 179,198,378.16 = 71,120,210.76 : x
  2. Step 2: Convert to fraction form
    129,853,851.84/179,198,378.16 = 71,120,210.76/x
  3. Step 3: Cross multiply
    129,853,851.84x = 179,198,378.16 × 71,120,210.76
  4. Step 4: Simplify right side
    129,853,851.84x = 12,744,626,422,589,382
  5. Step 5: Solve for x
    x = 12,744,626,422,589,382/129,853,851.84
  6. Step 6: Final answer
    x = 98,145,925.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.